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Diagnostic Imaging
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1. Trends in diagnostic imaging utilization in a university hospital in Turkey.
Match Strength: 8.800

OBJECTIVES: The aim of this study was to evaluate utilization trends of the diagnostic imaging examinations during the past decade in a university hospital in Turkey. METHODS: Patient registries of a university hospital were used for the years 1995 and 2003. The data set consisted of patients' admissions, social security status, and diagnostic imaging tests. RESULTS: When compared with 1995 data, the total number of diagnostic imaging examinations and patient admissions increased 65.9 percent and 81.6 percent, respectively, in the year 2003. Although the total number of diagnostic imaging ... Read More »
» Published in Int J Technol Assess Health Care. 2006 Fall;22(4):532-6.

2. Female pelvis: MR imaging at 3.0 T with sensitivity encoding and flip-angle sweep technique.
Match Strength: 6.043

This study had institutional review board approval; all 33 patients (mean age, 47 years +/- 16 [standard deviation]) gave informed consent. The aim was to prospectively evaluate the diagnostic image quality yielded by a 3.0-T T2-weighted turbo spin-echo magnetic resonance imaging sequence with a very short imaging time versus that yielded by a standard 3.0-T sequence at imaging of the female pelvis. Signal-to-noise ratio and delineation of gynecologic disorders were approximately equal between the two sequences. The majority of tissue contrasts were comparable, but contrast between fluid and ... Read More »
» Published in Radiology. 2006 Nov;241(2):538-45. Epub 2006 Sep 18.

3. The efficacy of magnetic resonance imaging in the diagnosis of degenerative and inflammatory temporomandibular joint disorders: a systematic literature review.
Match Strength: 5.638

OBJECTIVE: To evaluate the evidence for the efficacy of magnetic resonance imaging (MRI) in the diagnosis of disk position and configuration, disk perforation, joint effusion, and osseous and bone marrow changes in the temporomandibular joint. STUDY DESIGN: A PubMed literature search with specific indexing terms and a hand search were made. Two reviewers assessed the level of evidence of relevant publications as high, moderate, or low. Based on this, the evidence grade for diagnostic efficacy was rated as strong, moderately strong, limited, or insufficient. RESULTS: The literature search ... Read More »
» Published in Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006 Oct;102(4):521-36. Epub 2006 Apr 24.

4. Neonatal gastrointestinal imaging.
Match Strength: 5.535

Radiological imaging is an important part of the evaluation and management of neonates with suspected anomalies of the gastrointestinal tract. Clinical presentation is often non-specific, commonly with abdominal distension and vomiting for which the underlying cause may or may not be clinically apparent. In a proportion of patients, the clinical assessment alone may suffice in providing the diagnosis and no further imaging is necessary. The reader must have an understanding of the normal radiographic appearances of the gastrointestinal tract in neonates and appreciate normal variants and ... Read More »
» Published in Eur J Radiol. 2006 Nov;60(2):171-86. Epub 2006 Sep 25.

5. The diagnostic accuracy of 64-slice computed tomography coronary angiography compared with stress nuclear imaging in emergency department low-risk chest pain patients.
Match Strength: 5.434

STUDY OBJECTIVE: We compared the accuracy of multidetector computed tomography (CT) coronary angiography with stress nuclear imaging for the detection of an acute coronary syndrome or 30-day major adverse cardiac events in low-risk chest pain patients. METHODS: This was a prospective study of the diagnostic accuracy of myocardial perfusion imaging and multidetector CT in low-risk chest pain patients. The target condition was an acute coronary syndrome (confirmed >70% coronary stenosis on coronary artery catheterization) or major adverse cardiac events within 30 days. Patients were low risk ... Read More »
» Published in Ann Emerg Med. 2007 Feb;49(2):125-36. Epub 2006 Sep 15.

6. MR imaging with remote control: feasibility study in cardiovascular disease.
Match Strength: 5.381

The institutional review board approved this HIPAA-compliant study and waived informed consent. The purpose was to retrospectively evaluate remote control magnetic resonance (MR) imaging in complex cardiovascular procedures, whereby operational expertise was made available locally from a remote location. Thirty patients underwent cardiac (12 patients) and/or vascular (30 patients) 1.5-T MR imaging with a remote operator by using a personal computer. All patient studies were compared with 30 control studies obtained with conventional local imaging. Cardiac cine, myocardial delayed enhancement, ... Read More »
» Published in Radiology. 2006 Nov;241(2):528-37. Epub 2006 Sep 27.

7. Pearls and pitfalls in interpretation of abdominal and pelvic PET-CT.
Match Strength: 4.903

The interpretation of images obtained in the abdomen and pelvis can be challenging, and the coregistration of positron emission tomographic (PET) and computed tomographic (CT) scans may be especially valuable in the evaluation of these anatomic areas. PET-CT represents a major technologic advance, consisting of generally complementary modalities whose combined strength tends to overcome their respective weaknesses. However, this combined functional-structural imaging approach raises a number of controversial questions and presents some unique interpretative challenges. Accurate PET-CT scan ... Read More »
» Published in Radiographics. 2006 Sep-Oct;26(5):1335-53.

8. Burn depths evaluation based on active dynamic IR thermal imaging--a preliminary study.
Match Strength: 4.900

Proper diagnostic assessment of burn wound depth is of the highest importance in selecting the mode of burn wound treatment. Several diagnostic methods--clinical and histopathological evaluation, as well as methods employing IR imaging--static thermography and active dynamic thermography (ADT)--are compared on the basis of in vivo experiments conducted on three domestic pigs (23 burn wounds). ADT is presented here as a new, reliable and quantitative method of assessing burn wound depth on the basis of discrimination of the thermal properties of burnt tissue. In the case of ADT registration of ... Read More »
» Published in Burns. 2006 Nov;32(7):867-75. Epub 2006 Sep 25.

9. Lymphotrophic nanoparticle enhanced MR imaging (LNMRI) for lymph node imaging.
Match Strength: 4.881

The accurate staging of lymph nodes in various primary tumors continues to pose a major diagnostic challenge. Following the detection of lymph nodes, the next arduous task is the characterization of nodes into benign and malignant categories. Cross-sectional modalities like CT and MRI rely on nodal size as the primary yardstick for differentiating benign from malignant lymph nodes. Other parameters such as the nodal shape and contours, the intrinsic architecture of the node, its level of enhancement may also provide useful information. In comparison, the emerging modality of PET relies on the ... Read More »
» Published in Abdom Imaging. 2006 Sep 15;

10. Extra-osseous fat fluid level: a specific sign for osteomyelitis.
Match Strength: 4.879

Osteomyelitis may pose as a diagnostic dilemma on various imaging modalities and may be confused with neoplasms and other pathology. Although a rare finding, extra-osseous fat fluid level, especially when associated with spongy bone destruction, can be considered a specific sign of osteomyelitis. Previously, only two cases of extra-osseous fat fluid level in osteomyelitis have been reported, one on computed tomography (CT) and the other on magnetic resonance imaging (MRI). The former was a case of septic arthritis with intra-articular fat fluid level. A case of osteomyelitis is presented with ... Read More »
» Published in Skeletal Radiol. 2006 Sep 19;

11. Time-resolved contrast-enhanced MR angiography of the thorax in adults with congenital heart disease.
Match Strength: 4.653

OBJECTIVE: The aim of this study was to evaluate the diagnostic value of time-resolved contrast-enhanced MR angiography in adults with congenital heart disease. SUBJECTS AND METHODS: Twenty patients with congenital heart disease (mean age, 38 +/- 14 years; range, 16-73 years) underwent contrast-enhanced turbo fast low-angle shot MR angiography. Thirty consecutive coronal 3D slabs with a frame rate of 1-second duration were acquired. The mask defined as the first data set was subtracted from subsequent images. Image quality was evaluated using a 5-point scale (from 1, not assessable, to 5, ... Read More »
» Published in AJR Am J Roentgenol. 2006 Oct;187(4):1107-14.

12. Transcutaneous contrast-enhanced sonography of peripheral lung lesions.
Match Strength: 4.634

OBJECTIVE: Transpulmonary sonography contrast agents, in conjunction with contrast-specific imaging techniques, are increasingly accepted in clinical use for diagnostic imaging of several organs. Anatomically, the lung is characterized by dual blood sources, supplied from both the pulmonary and bronchial arteries. Contrast-enhanced sonography enables us to determine whether the pulmonary or the bronchial arteries are the source of blood to lung lesions, depending on the time to enhancement and the extent of enhancement after contrast agent application. CONCLUSION: This article reports our ... Read More »
» Published in AJR Am J Roentgenol. 2006 Oct;187(4):W420-9.

13. Diagnostic accuracy of preoperative magnetic resonance imaging in predicting curative resection of rectal cancer: prospective observational study.
Match Strength: 4.611

OBJECTIVE: To assess the accuracy of preoperative staging of rectal cancer with magnetic resonance imaging to predict surgical circumferential resection margins. DESIGN: Prospective observational study of rectal cancers treated by colorectal multidisciplinary teams between January 2002 and October 2003. SETTING: 11 colorectal units in four European countries. PARTICIPANTS: 408 consecutive patients presenting with all stages of rectal cancer and undergoing magnetic resonance imaging before total mesorectal excision surgery and histopathological assessment of the surgical specimen. MAIN OUTCOME ... Read More »
» Published in BMJ. 2006 Oct 14;333(7572):779. Epub 2006 Sep 19. Comment in: BMJ. 2006 Oct 14;333(7572):766-7., BMJ. 2006 Oct 14;333(7572):808., BMJ. 2006 Oct 14;333(7572):808-9.

14. Styrylbenzoazole derivatives for imaging of prion plaques and treatment of transmissible spongiform encephalopathies.
Match Strength: 4.607

Recent prevalence of acquired forms of transmissible spongiform encephalopathies (TSEs) has urged the development of early diagnostic measures as well as therapeutic interventions. To extend our previous findings on the value of amyloid imaging probes for these purposes, styrylbenzoazole derivatives with better permeability of blood-brain barrier (BBB) were developed and analyzed in this study. The new styrylbenzoazole compounds clearly labeled prion protein (PrP) plaques in brain specimens from human TSE in a manner irrespective of pathogen strain, and a representative compound BF-168 ... Read More »
» Published in J Neurochem. 2006 Oct;99(1):198-205.

15. Improving the concordance of mammography assessment and management recommendations.
Match Strength: 4.594

PURPOSE: To retrospectively compare the concordance of initial and final assessment categories for mammograms with management recommendations made before and after the final rules of the Mammography Quality Standards Act (MQSA) were in effect for screening and diagnostic mammography. MATERIALS AND METHODS: The study included mammograms from 1996 to 2001 from the seven mammography registries of the Breast Cancer Surveillance Consortium (BCSC). The authors defined the pre-MQSA period as January 1, 1996-April 27, 1999, and the post-MQSA period as April 28, 1999-December 31, 2001 (2470151 ... Read More »
» Published in Radiology. 2006 Oct;241(1):67-75.

16. Peripheral neuropathies of the median, radial, and ulnar nerves: MR imaging features.
Match Strength: 4.517

The median, radial, and ulnar nerves of the upper limbs may be affected by various peripheral neuropathies, each of which may be categorized according to its cause, as either an entrapment or a nonentrapment neuropathy. Entrapment neuropathies, also referred to as nerve compression syndromes, include the supracondylar process syndrome, pronator syndrome, anterior interosseous nerve syndrome, carpal tunnel syndrome, posterior interosseous nerve syndrome, cubital tunnel syndrome, and Guyon canal syndrome. Nonentrapment neuropathies include traumatic nerve injuries, infectious and inflammatory ... Read More »
» Published in Radiographics. 2006 Sep-Oct;26(5):1267-87.

17. The positive predictive value for diagnosis of breast cancer full-field digital mammography versus film-screen mammography in the diagnostic mammographic population.
Match Strength: 4.424

RATIONALE AND OBJECTIVES: Diagnostic mammography is performed on women with clinical symptoms that suggest breast cancer or women for whom further mammographic evaluation has been requested because of an abnormal screening mammography. We assessed whether the use of full-field digital mammography would improve the positive predictive value (PPV) for the diagnosis of breast cancer in a diagnostic population compared with film-screen mammography. MATERIALS AND METHODS: From January 2002 to December 2003, 11,621 patients underwent diagnostic mammography at the University of North Carolina ... Read More »
» Published in Acad Radiol. 2006 Oct;13(10):1229-35.

18. Evaluation of three-dimensional navigator-gated whole heart MR coronary angiography: The importance of systolic imaging in subjects with high heart rates.
Match Strength: 4.248

PURPOSE: To evaluate the influence of heart rate (HR) on magnetic resonance coronary angiography (MRCA) image quality in diastolic and systolic phases. MATERIALS AND METHODS: Twenty-seven healthy volunteers (9 men; 33+/-9 years, HR 53-110bpm), were evaluated with the electrocardiography and three-dimensional navigator-gating MRCA in a 1.5-T MR scanner (Avanto, Siemens) in diastolic and systolic phases (steady-state free precession; TR/TE/flip angle=3.2ms/1.6ms/90 degrees ). The timing of scanning was individually adapted to the cardiac rest periods obtained in the prescanning, by visually ... Read More »
» Published in Eur J Radiol. 2007 Jan;61(1):91-6. Epub 2006 Sep 20.

19. Diagnostic accuracy of serum B-type natriuretic peptide for myocardial ischemia detection during exercise testing with Spect perfusion imaging.
Match Strength: 4.154

OBJECTIVE: To determine whether serum B-type natriuretic peptide measured at rest and peak exercise and DeltaBNP contribute to the predictive value and diagnostic accuracy of exercise test in the diagnosis of myocardial ischemia. BACKGROUND: Ventricular myocytes release BNP in response to increased wall stress that occurs in acute ischemia. During exercise testing, transient myocardial ischemia could also cause acute myocardial stress and changes in circulating BNP. METHODS: BNP was measured before and immediately after exercise testing with radionuclide imaging in 203 consecutive subjects ... Read More »
» Published in Int J Cardiol. 2006 Sep 22;

20. Early diagnosis and staging of prostate cancer.
Match Strength: 4.101

The need for accurate methods of ascertaining the malignant potential of any given man's prostate cancer has never been greater than it is today. The presenters at the session of the 13th International Prostate Cancer Update addressing early diagnosis and staging of disease discussed combined-modality staging of disease; color Doppler imaging for detection of cancer; pelvic lymphadenectomy as a diagnostic tool; and a new, artificial intelligence-based model to predict survival. A summary of these presentations is provided here ... Read More »
» Published in Rev Urol. 2003;5 Suppl 6:S17-22.

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